Home Itens selecionados Provedores de dados OAI Créditos Sobre Ajuda

			Busca avançada
	Provedor de dados Rev. Bras. Ciênc. Solo (2) Autor Gimenes,Fernando Henrique Setti (2) Figueiredo,Getulio Coutinho (1) Libardi,Paulo Leonel (1) Mome Filho,Edison Aparecido (1) Silva,Alvaro Pires da (1) Silva,Maria Laiane do Nascimento (1) Vitti,André Cesar (1) Mais... Palavra-chave Compaction (1) Haines funnel (1) Matric potential (1) Mechanization (1) Pore size distribution (1) Richards chamber (1) Soil water content (1) Sugarcane (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2018 (1) 2014 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Soil Water Retention Curve as Affected by Sample Height Rev. Bras. Ciênc. Solo Silva,Maria Laiane do Nascimento; Libardi,Paulo Leonel; Gimenes,Fernando Henrique Setti. ABSTRACT: The soil water retention curve is one of the main instruments to assess the soil physical quality and to improve soil management. Traditionally, the equipment most used in the laboratory to determine the retention curve has been Haines funnels and Richards chambers. An important factor to which little attention has been given in the use of these equipaments is the height of the undisturbed soil sample. This work proposes to evaluate the influence of different heights of undisturbed samples for the determination of the retention curve. For this, undisturbed soil samples were collected in aluminum cylinders of three different heights (S1 = 75 mm; S2 =50mm; S3 =25 mm) and with the same internal diameter (70 mm) from the diagnostic horizons of a... Tipo: Info:eu-repo/semantics/article Palavras-chave: Matric potential; Haines funnel; Richards chamber; Pore size distribution. Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832018000100426 Compared performance of penetrometers and effect of soil water content on penetration resistance measurements Rev. Bras. Ciênc. Solo Mome Filho,Edison Aparecido; Silva,Alvaro Pires da; Figueiredo,Getulio Coutinho; Gimenes,Fernando Henrique Setti; Vitti,André Cesar. Modern agriculture techniques have a great impact on crops and soil quality, especially by the increased machinery traffic and weight. Several devices have been developed for determining soil properties in the field, aimed at managing compacted areas. Penetrometry is a widely used technique; however, there are several types of penetrometers, which have different action modes that can affect the soil resistance measurement. The objective of this study was to compare the functionality of two penetrometry methods (manual and automated mode) in the field identification of compacted, highly mechanized sugarcane areas, considering the influence of soil water volumetric content (θ) on soil penetration resistance (PR). Three sugarcane fields on a Rhodic Eutrudrox... Tipo: Info:eu-repo/semantics/article Palavras-chave: Sugarcane; Mechanization; Compaction; Soil water content. Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832014000300006 Registros recuperados: 2 Primeira ... 1 ... Última

Empresa Brasileira de Pesquisa Agropecuária - Embrapa Todos os direitos reservados, conforme Lei n° 9.610 Política de Privacidade Área restrita		Embrapa Parque Estação Biológica - PqEB s/n° Brasília, DF - Brasil - CEP 70770-901 Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco